Explain how the sets of numbers (counting, whole, integer, rational, irrational, reals) are related to each other.

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

What is the product? a-3/15a × 5/a-3